WM Class I-2 2-10-0
E309074
WM Class I-2 2-10-0 was a powerful Decapod-type steam locomotive class used by the Western Maryland Railway primarily for heavy freight service over steep grades.
All labels observed (1)
| Label | Occurrences |
|---|---|
| WM Class I-2 2-10-0 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2892752 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: WM Class I-2 2-10-0 Context triple: [Western Maryland Railway, notableLocomotiveClass, WM Class I-2 2-10-0]
-
A.
WM Class H-9 2-8-0
The WM Class H-9 2-8-0 was a class of powerful Consolidation-type steam freight locomotives used by the Western Maryland Railway in the early to mid-20th century.
-
B.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
-
C.
Forney locomotive
The Forney locomotive is a compact 19th-century steam tank locomotive type, notable for its rigid wheelbase and rear-mounted fuel and water tanks, widely used on urban elevated and commuter railways.
-
D.
Union Pacific No. 119
Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
-
E.
Southern Pacific Cab Forward locomotive
The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: WM Class I-2 2-10-0 Target entity description: WM Class I-2 2-10-0 was a powerful Decapod-type steam locomotive class used by the Western Maryland Railway primarily for heavy freight service over steep grades.
-
A.
WM Class H-9 2-8-0
The WM Class H-9 2-8-0 was a class of powerful Consolidation-type steam freight locomotives used by the Western Maryland Railway in the early to mid-20th century.
-
B.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
-
C.
Forney locomotive
The Forney locomotive is a compact 19th-century steam tank locomotive type, notable for its rigid wheelbase and rear-mounted fuel and water tanks, widely used on urban elevated and commuter railways.
-
D.
Union Pacific No. 119
Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
-
E.
Southern Pacific Cab Forward locomotive
The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
Decapod-type steam locomotive
ⓘ
freight steam locomotive ⓘ steam locomotive class ⓘ |
| brakeType | air brakes ⓘ |
| category |
2-10-0 locomotives
ⓘ
Western Maryland Railway ⓘ
surface form:
Western Maryland Railway locomotives
steam locomotives of the United States ⓘ |
| countryOfOperation |
United States of America
ⓘ
surface form:
United States
|
| coupling | Janney coupler ⓘ |
| designedFor |
heavy drag freight
ⓘ
steep grades ⓘ |
| gauge |
4 ft 8 1⁄2 in
ⓘ
standard gauge ⓘ |
| gradeProfile | mountain grades ⓘ |
| nickname | Decapod ⓘ |
| operator | Western Maryland Railway ⓘ |
| powerType | steam ⓘ |
| primaryUse |
coal trains
ⓘ
heavy freight service ⓘ |
| railroad | Western Maryland Railway ⓘ |
| railwayCompany | Western Maryland Railway ⓘ |
| regionOfOperation |
Appalachian region of the United States
ⓘ
surface form:
Appalachian region
|
| serviceType | freight ⓘ |
| tractionCharacteristic | high tractive effort ⓘ |
| UICClassification | 1E ⓘ |
| usedOn |
Western Maryland Railway
ⓘ
surface form:
Western Maryland branch lines
Western Maryland Railway ⓘ
surface form:
Western Maryland main line
|
| wheelArrangement | 2-10-0 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: WM Class I-2 2-10-0 Description of subject: WM Class I-2 2-10-0 was a powerful Decapod-type steam locomotive class used by the Western Maryland Railway primarily for heavy freight service over steep grades.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.